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प्रश्न
Name the following:
Cells having a single set of chromosomes.
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उत्तर
Haploid
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संबंधित प्रश्न
Name the following:
The number of chromosomes present in a nerve cell of a human being.
Chromosomes are mainly made up of ______.
Choose the correct answer:
Chromosomes number is halved in _____________
Choose the correct answer:
Minimum coiling in chromosome is at ________________
The number of chromosomes in a certain type of cell division is halved. This kind of cell division occurs in ______.
Enumerate the various changes that occur in the nucleus of the cell during prophase.
Give a reason for the following:
Gametes must be produced by meiosis for sexual reproduction.
Draw a duplicate chromosome and label its part.
Give Technical Terms
The stage at which chromosomes occurs reach the opposite poles.
Give Technical Terms
The stage at which the formation of chiasmata occurs.
Complete the following sentence with appropriate word:
The number of chromosomes in humans is ________.
Multiple Choice Question
Chromosomal aberrations are caused by:
Define euploidy.
Describe the structure of sex chromosomes with the help of labelled diagram.
Explain the structure of chromosomes with labelled diagram.
The loss of one or more chromosomes in ploidy is called ______.
Some of the chromosomes have an elongated knob-like appendages known as telomere.
______ is a sudden permanent heritable change that can occur in the gene, in the chromosome or chromosome number.
Differentiate between X-chromosome and Y-chromosome with reference to –
- length of non-homologous regions
- type as per the position of the centromere
The female gamete/egg cell of a human cell will have ______.
